US10071639B2 - Charging system of electric vehicle - Google Patents

Charging system of electric vehicle Download PDF

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Publication number
US10071639B2
US10071639B2 US14/854,385 US201514854385A US10071639B2 US 10071639 B2 US10071639 B2 US 10071639B2 US 201514854385 A US201514854385 A US 201514854385A US 10071639 B2 US10071639 B2 US 10071639B2
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Prior art keywords
relay
inverter
charging
power supply
electric vehicle
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US14/854,385
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US20160236579A1 (en
Inventor
Jeong Bin Yim
Jae Hwa Jeon
Dae Woong Han
Sang Kyu Lee
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Hyundai Motor Co
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Hyundai Motor Co
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Assigned to HYUNDAI MOTOR COMPANY reassignment HYUNDAI MOTOR COMPANY ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: HAN, DAE WOONG, JEON, JAE HWA, LEE, SANG KYU, YIM, JEONG BIN
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
    • B60L15/20—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
    • B60L15/22—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed with sequential operation of interdependent switches, e.g. relays, contactors, programme drum
    • B60L11/1811—
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/02—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
    • B60L11/1803—
    • B60L11/1805—
    • B60L11/1814—
    • B60L11/1824—
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/51—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells characterised by AC-motors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/20—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by converters located in the vehicle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/20—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by converters located in the vehicle
    • B60L53/24—Using the vehicle's propulsion converter for charging
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/30—Constructional details of charging stations
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/022—
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J2207/20—Charging or discharging characterised by the power electronics converter
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2310/00—The network for supplying or distributing electric power characterised by its spatial reach or by the load
    • H02J2310/40—The network being an on-board power network, i.e. within a vehicle
    • H02J2310/48—The network being an on-board power network, i.e. within a vehicle for electric vehicles [EV] or hybrid vehicles [HEV]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • Y02T10/7005—
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/72—Electric energy management in electromobility
    • Y02T10/7258—
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/12—Electric charging stations
    • Y02T90/121—
    • Y02T90/127—
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/14—Plug-in electric vehicles

Definitions

  • the present disclosure relates to a charging system of an electric vehicle, and more particularly, to a technology of a charging system connected to an external power supply by a plug-in manner to charge a battery.
  • a plug-in hybrid electric vehicle (hereinafter, collectively referred to as ‘MEV’) or an electric vehicle (hereinafter, collectively referred to as ‘EV’) includes a battery that is charged with electric energy required for driving the vehicle from an external alternating current (hereinafter, collectively referred to as ‘AC’) power supply using on-board charger (hereinafter, collectively referred to as an ‘OBC’) mounted within the vehicle.
  • MEV plug-in hybrid electric vehicle
  • EV electric vehicle
  • AC external alternating current
  • OBC on-board charger
  • the OBC includes a high voltage switch, an inductor, a capacitor, an insulating transformer, a relay, a control board, a cooling system, and a separate packaging housing the components and is therefore disadvantageous in a size, a weight, and a price.
  • the OBC which is not required while a vehicle is being driven but is required while a vehicle is being charged is mounted within a vehicle while being separately configured. As a result, a vehicle weight may be increased, which leads to an adverse effect on driving fuel efficiency of a vehicle.
  • the related art proposes a structure in which an inverter boosts a household power supply to a targeted voltage and a direct current (hereinafter, collectively referred to as ‘DC’)—direct current (DC) converter forms a simple current pass without performing a switching control to charge the battery.
  • the structure has difficulty of controlling a boost power factor corrector (PFC) when the high voltage battery voltage is less than the household voltage.
  • PFC boost power factor corrector
  • the existing inverter integrated charging system structure includes a bidirectional DC-DC converter and performs a boost control using the inverter to boost the input voltage to the battery voltage or greater. Further, the bidirectional converter performs a buck control to buck the input voltage to a targeted battery voltage.
  • the structure may be applied to a vehicle that includes the bidirectional converter. Further, when there is no bidirectional converter installed within the vehicle, no charging region occurs based on an external input voltage and battery voltage range. In other words, when the battery voltage range is low or AC rectification voltage is greater than battery voltage, no boost charging control region occurs in a low state-of-charge region of the battery.
  • An aspect of the present disclosure provides a charging system for an electric vehicle implemented based on a motor and an inverter previously mounted within the electric vehicle without a separate on-board charger.
  • a charging system of an electric vehicle may include: a DC power supply configured to store or output DC power; a motor configured to drive the electric vehicle; an inverter configured to drive the motor based on a flow of current; an AC power supply configured to supply power to the DC power supply; a charging relay configured to perform a switching operation to supply DC power output from the inverter to the DC power supply; and an input relay configured to perform the switching operation to supply the AC power to the inverter.
  • the input relay may include two input relays disposed across the AC power supply.
  • the charging system of an electric vehicle may further include: two main relays configured to supply the DC power charged in the DC power supply to the motor while the motor is being driven; and an auxiliary capacitor connected in parallel to the DC power supply and disposed between the charging relay and the main relay to store the power charged in the DC power supply.
  • the charging system of an electric vehicle may further include: an inductor disposed between the charging relay and the inverter.
  • the charging relay may include: a first charging relay disposed between the DC power supply and the inverter and a second charging relay disposed between the motor and the input relay.
  • the second charging relay may be connected in series to a plurality of second charging relays.
  • Two phases of a three-phase switch of the inverter may be used as a boost converter configured to boost (e.g., increase) a voltage to a battery voltage or greater using a boost control.
  • One phase of a three-phase switch of the inverter may be used as a buck converter configured to buck (e.g., decrease) a voltage of a capacitor to a targeted battery voltage using a buck control.
  • FIG. 1 is an exemplary block diagram of a charging system of an electric vehicle according to an exemplary embodiment of the present disclosure
  • FIG. 2 is an exemplary diagram schematically illustrating the charging system of FIG. 1 according to an exemplary embodiment of the present disclosure
  • FIG. 3 is an exemplary diagram schematically illustrating the charging system of FIG. 1 at the time of a charging operation according to an exemplary embodiment of the present disclosure
  • FIG. 4 is an exemplary diagram illustrating a condition of solving a problem region, according to an exemplary embodiment of the present disclosure.
  • vehicle or “vehicular” or other similar term as used herein is inclusive of motor vehicles in general such as passenger automobiles including sports utility vehicles (SUV), buses, trucks, various commercial vehicles, watercraft including a variety of boats and ships, aircraft, and the like, and includes hybrid vehicles, electric vehicles, plug-in hybrid electric vehicles, hydrogen-powered vehicles and other alternative fuel vehicles (e.g. fuels derived from resources other than petroleum).
  • a hybrid vehicle is a vehicle that has two or more sources of power, for example both gasoline-powered and electric-powered vehicles.
  • controller/control unit refers to a hardware device that includes a memory and a processor.
  • the memory is configured to store the modules and the processor is specifically configured to execute said modules to perform one or more processes which are described further below.
  • the term “about” is understood as within a range of normal tolerance in the art, for example within 2 standard deviations of the mean. “About” can be understood as within 10%, 9%, 8%, 7%, 6%, 5%, 4%, 3%, 2%, 1%, 0.5%, 0.1%, 0.05%, or 0.01% of the stated value. Unless otherwise clear from the context, all numerical values provided herein are modified by the term “about.”
  • an electric vehicle may be a plug-in hybrid electric vehicle (hereinafter, collectively referred to as ‘PHEV’) or an electric vehicle (hereinafter, collectively referred to as ‘EV’).
  • the charging system of an electric vehicle according to the exemplary embodiment of the present disclosure may be a charging system connected to an external power supply, which is a commercial power supply, by plug-in manner to charge a battery.
  • FIG. 1 is an exemplary block diagram of a charging system of an electric vehicle according to an exemplary embodiment of the present disclosure and illustrates an integrated charging system structure of a motor system.
  • the charging system may include a direct current (hereinafter, collectively referred to as ‘DC’) power supply 101 , a main relay 1 103 , a main relay 2 105 , a charging relay 1 107 , an auxiliary capacitor (e.g., buck) 111 , a DC link capacitor 113 , an inverter 115 , a motor 117 , a charging relay 2 119 , an input relay 121 , and an alternating current (hereinafter, collectively referred to as ‘AC’) power supply 123 .
  • DC direct current
  • AC alternating current
  • the DC power supply 101 , the main relay 1 103 , the main relay 2 105 , the charging relay 1 107 , and the auxiliary capacitor (e.g., buck) 111 configure a battery.
  • the battery may be configured to receive DC power from the inverter 115 and store the received DC power in the DC power supply 101 . Further, the DC power charged in the DC power supply 101 may be supplied to the motor 117 via the inverter 115 .
  • the inverter 115 may be configured to operate the motor 117 of the electric vehicle based on a flow direction of current. In addition, the inverter 115 may be configured to convert the DC power into AC power.
  • the motor 117 may be connected to the inverter 115 to drive the electric vehicle (not illustrated) and may be driven using alternating current supplied from the battery through the inverter 115 .
  • the AC power supply 123 may be the external power supply and may be configured to supply power to the battery.
  • the charging relay 1 107 , the charging relay 2 119 , and the input relay 121 are parts which are additionally configured in the charging system.
  • the auxiliary capacitor (buck) 111 may be a part which is optionally added to the charging system.
  • the auxiliary capacitor 111 may be a smoothing capacitor configured to absorb a ripple current flowing in the inductor 109 ( FIG. 2 ) to form a DC voltage.
  • the battery may be configured to operate as a large-capacity capacitor and therefore the auxiliary capacitor may not be required but may be added when being required for control.
  • the main relay 1 103 and the main relay 2 105 may be configured to perform a switching operation to supply power charged in the DC power supply 101 to the motor 119 .
  • the main relay 1 103 and the main relay 2 105 may be connected across the DC power supply 101 to adjust a voltage and a current input and output to and from the DC power supply 101 .
  • the charging relay 1 107 , the charging relay 2 119 , and the input relay 121 may be configured to supply the AC power from the AC power supply 123 to the battery to perform the switching operation for charging. The charging operation of the charging system of FIG. 1 will be described below.
  • FIG. 2 is an exemplary diagram schematically illustrating the charging system of FIG. 1
  • FIG. 3 is an exemplary diagram schematically illustrating the charging system of FIG. 1 during a charging operation
  • FIG. 4 is an exemplary diagram illustrating a condition for solving a problem region, according to an exemplary embodiment of the present disclosure.
  • a circuit wiring may be changed using the main relay 1 103 , the main relay 2 105 , the charging relay 1 107 , the charging relay 2 119 , and the input relay 121 as shown in the following Table 1 during charging and a boost converter A and a buck converter B may be configured using a switch of the inverter 115 .
  • the added parts 107 , 119 , and 121 may be installed extraneous to a power module pack which is a switching device of an inverter and therefore the existing system configuration may be used as it is.
  • the relay may be operated as the above Table 1 while the motor is being driven and during charging to form the circuit wiring.
  • the AC external power supply 123 may be configured to boost (e.g., increase) a voltage to a battery voltage or greater by performing a boost control using 2 phases among a three-phase switch of the inverter 115 . Further, the boosted voltage may be charged in the DC link capacitor 113 .
  • the buck control may be performed using one phase of the three-phase switch of the inverter 115 to buck (e.g., decrease) the voltage of the DC link capacitor 113 to the targeted battery voltage.
  • FIG. 1 may be simply changed to FIG. 2
  • the switching device of the inverter 115 may be configured of three phases, in which two phases may be used as the boost converter A and one phase may be used as the buck converter B.
  • the two phases of the inverter may be used as the boost converter A but the inverter may be expected to have better performance based on a control method connected in parallel as C and D.
  • one phase C used as the boost converter A may be configured to perform a boost switching operation when the AC power supply 123 is positive [+] and one phase D used as the boost converter A may be configured to perform the boost switching operation when the AC power supply 123 is negative [ ⁇ ], and thus the charging may be configured to perform the boost switching operation without including a separate rectifier.
  • the charging system illustrated in FIGS. 1, 2, and 3 may include the boost converter A and the buck converter B using the switch of the inverter in the structure without the DC-DC bidirectional converter and may be configured to perform the boost switching operation without including the separate rectifier. Accordingly, as illustrated in FIG. 4 , the existing problem region may be solved.
  • the boost control may be performed by the inductance of the motor and the switch device of the inverter. Therefore, in a high section (e.g., region in which the voltage control of FIG. 4 may not be made) in which the AC input voltage is greater than that of the high voltage battery, the boost voltage control may not be performed. Therefore, there is a section in which the control may not be performed with the desired voltage.
  • the boost control and the buck control may be performed by the switching device of the inverter without the configuration of the separate buck converter or the bidirectional DC-DC converter. Therefore, the DC-link voltage may be boosted to a region greater than the AC input voltage by the boost control and the DC-link voltage may be again bucked to the desired voltage, that is, the targeted voltage of the high voltage battery by the buck control, thus operating the charging system in the controllable state regardless of the existing problem region as taught in the related art.
  • the charging system configuration according to the exemplary embodiment of the present disclosure may include the boost converter and the buck converter using the switch of the inverter 211 in the structure without requiring a bidirectional DC-DC converter. Further, the charging system configuration according to the exemplary embodiment of the present disclosure omits the on-board charger (OBC) to contribute to the reduction in the vehicle packaging and weight, thereby increasing the driving efficiency of the vehicle.
  • OBC on-board charger
  • the charging system having the motor and the inverter which are previously mounted within the electric vehicle regardless of the vehicle system configuration using the existing power electronic (PE) parts and the simplified additional apparatus, without using the OBC which is previously mounted in the electric vehicle of the related art. Therefore, it may be possible to implement the charging operation in all the systems using the motor and the inverter, for example, the systems, regardless of whether the system includes one motor, two motors, and the OBC. In addition, it may be possible to improve the packaging performance, reduce the vehicle weight, and greatly reduce the costs against the on-board charger.
  • PE power electronic
US14/854,385 2015-02-12 2015-09-15 Charging system of electric vehicle Active 2036-04-29 US10071639B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2015-0021490 2015-02-12
KR1020150021490A KR101684064B1 (ko) 2015-02-12 2015-02-12 전기 자동차의 충전 시스템

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US20160236579A1 US20160236579A1 (en) 2016-08-18
US10071639B2 true US10071639B2 (en) 2018-09-11

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US (1) US10071639B2 (ko)
EP (1) EP3057197B1 (ko)
JP (1) JP6821294B2 (ko)
KR (1) KR101684064B1 (ko)
CN (1) CN105896691A (ko)

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KR102008751B1 (ko) * 2017-09-12 2019-08-12 현대오트론 주식회사 차량용 전력 제어 장치
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